Django ContextMixin 'super' 对象没有属性 'get_context_data'

Question

我需要在几个视图中将一些上下文传递给模板。上下文是使用一些用户信息从 BD 获得的，所以我实现了一个特定的 ContextMixin 类：

class CampaignContextMixin(ContextMixin):
"""
This mixin returns context with info related to user's campaign.
It can be used in any view that needs campaign-related info to a template.
"""
def get_campaigns(self):
    # Get the first campaign related to user, can be more in the future
    return self.request.user.campaign_set.all()

# Method Overwritten to pass campaign data to template context
def get_context_data(self, **kwargs):
    context = super(CampaignContextMixin).get_context_data(**kwargs)
    campaign = self.get_campaigns()[0]
    context['campaign_name'] = campaign.name
    context['campaign_start_date'] = campaign.start_date
    context['campaign_end_date'] = campaign.end_date
    context['org_name'] = self.request.user.organization.name
    context['campaign_image'] = campaign.image.url
    context['campaign_details'] = campaign.details
    return context

然后我尝试在我的视图中使用它，但我收到一个错误：

'super' 对象没有属性 'get_context_data'

class VoucherExchangeView(CampaignContextMixin, TemplateView):
"""
This view Handles the exchange of vouchers.
"""
template_name = "voucher_exchange.html"

def get_context_data(self, **kwargs):
    ctx = super(VoucherExchangeView).get_context_data(**kwargs)
    # add specific stuff if needed
    return ctx

我不确定是因为继承错误，还是因为 TemplateView 也继承自 ContextMixin。我的目标是重用将广告系列信息添加到上下文的代码。

谢谢

Answer 1

你是说

super(CampaignContextMixin, self).get_context_data(**kwargs)
#super().get_context_data(**kwargs) --> python3